Four short links: 16 December 2010

On Compressing Social Networks (PDF) — paper looking at the theory and practice of compressing social network graphs. Our main innovation here is to come up with a quick and useful method for generating an ordering on the social network nodes so that nodes with lots of common neighbors are near each other in the ordering, a property which is useful for compression (via My Biased Coin, via Matt Biddulph on Delicious)